SU536857A1 - Method for the production of welded direct-heat pipe - Google Patents
Method for the production of welded direct-heat pipeInfo
- Publication number
- SU536857A1 SU536857A1 SU1299999A SU1299999A SU536857A1 SU 536857 A1 SU536857 A1 SU 536857A1 SU 1299999 A SU1299999 A SU 1299999A SU 1299999 A SU1299999 A SU 1299999A SU 536857 A1 SU536857 A1 SU 536857A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- welded
- production
- rolls
- heat pipe
- pipe
- Prior art date
Links
Description
1one
Изобретение относитс к области трубопрокатного производства.The invention relates to the field of pipe production.
Известен способ изготовлени труб, при котором гор чекатаный штрипс в рулонах подвергают Правке, каждый последующий рулон сваривают с концом предыдущего, удал ют грат после сварки, формуют из полосы трубную заготовку с последующей сваркой кромок и редуцируют полученную трубу.A known method of manufacturing pipes in which the hot rolled strip in rolls is edited, each successive roll is welded to the end of the previous one, the burr is removed after welding, the pipe billet is formed from a strip and the edges are welded and the resulting pipe is reduced.
Недостатком известного способа вл етс то, что при стыковке рулонов всегда имеет место превышение кромок ленты одного из рулонов по отношению к другому вследствие толщины штрипса в рулонах и неудовлетворительное сн тие грата после сварки концов рулонов. Превышение кромок и усилие шва привод т при редуцировании труб к возникновению прогрессирующего утолщени в районе поперечного стыка, значительному повышению нат жений перед стыком и соответственно к утонению стенок трубы перед стыком, а в конечном счете к разрыву трубы в стане.A disadvantage of the known method is that when joining rolls, the edges of the tape of one of the rolls always exceed the others due to the thickness of the strips in the rolls and poor deburring after welding the ends of the rolls. The excess of edges and the seam force result in the reduction of pipes to the occurrence of a progressive thickening in the transverse joint area, a significant increase in tension before the joint and, accordingly, thinning of the pipe walls before the joint, and ultimately to a pipe break in the mill.
С целью ликвидации Продольной разнотолщинности исходной заготовки и упрочнени места стыка дл получени готовых труб повышенной прочности по толщине стенки и ликвидации обрывности труб по предлагаемому способу непрерывную полосу перед формовкой прокатывают в валках прокатного стана.In order to eliminate the longitudinal thickness variation of the original billet and harden the joint to obtain finished pipes of increased strength for the wall thickness and eliminate pipe breakage according to the proposed method, a continuous strip is rolled in the rolls of the rolling mill before molding.
Способ осуществл ют следующим образом.The method is carried out as follows.
Рулон штрипса с разматывател подают в правильную машину, прав т, затем обрезают концы рулона ножницами и сваривают в стыкосварочной машине.The strip roll from the unwinder is fed into the correct machine, right, then the ends of the roll are cut with scissors and welded in a butt-welding machine.
После сварки и сн ти грата непрерывную полосу прокатывают в валках прокатного стана, формуют в трубную заготовку, сваривают кромки и радуцируют готовую трубу.After welding and deburring, a continuous strip is rolled into rolls of a rolling mill, molded into a pipe billet, the edges are welded, and the finished pipe is welded.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1299999A SU536857A1 (en) | 1969-01-27 | 1969-01-27 | Method for the production of welded direct-heat pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1299999A SU536857A1 (en) | 1969-01-27 | 1969-01-27 | Method for the production of welded direct-heat pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
SU536857A1 true SU536857A1 (en) | 1976-11-30 |
Family
ID=20444430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1299999A SU536857A1 (en) | 1969-01-27 | 1969-01-27 | Method for the production of welded direct-heat pipe |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU536857A1 (en) |
-
1969
- 1969-01-27 SU SU1299999A patent/SU536857A1/en active
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